Winshare Thermalloy

If you want to understand the radiator, you must first understand the relevant theoretical knowledge of the radiator. For example, how does it perform heat dissipation? The radiator uses the difference in the specific heat capacity of different materials to conduct heat conduction and derive the heat from the heat dissipation target. It is the radiator. Of course, the heat sink uses a larger heat dissipation area and a heat transfer medium to reduce the heat further after the heat is exported. It requires a complete heat dissipation system for heat conduction work.

But the radiator is not a highly versatile device. Different instruments have different heating conditions and heat dissipation requirements, and the more high-end instruments have stricter temperature requirements. In this case, we recommend that customers choose the service of a customized cold plate cooling system. Our designers will design according to customers' specific needs to ensure that the instrument receives a full range of temperature control. Avoid losses such as fusing and breakdown of the circuit board caused by overheating of the equipment.

The development of science and technology is the general trend of the 21st century. Various industries are promoting the development of science and technology while being changed by science and technology, which is a process of mutual promotion. Electronic products are at the forefront of technological development, and many advanced technologies are prioritized for installation on electronic equipment. Nowadays, the integration of electronic products is getting higher and higher, and the mobile phone is no longer a mobile phone that can only make calls. Multi-function and diversification are the inevitable trends of future development. The ensuing problem is the heating problem caused by high integration.

Why is there a threshold for the performance of mobile phones at such an advanced technological level? However, PCs and supercomputers with huge volumes have unlimited possibilities. It is not that mobile phone manufacturers cannot make higher-performance mobile phones, but that engineers cannot have both performance and heat dissipation within the limited framework of mobile phones. Higher performance means higher energy consumption and heat generation, and the limited space in the phone does not allow engineers to design more cooling modules. This situation has caused engineers to improve the performance of mobile phones as much as possible while ensuring that the temperature is safe and controllable. Despite this, the problem of heat generation in various high-performance mobile phones is still criticized by users.

With the rapid development of science and technology today, the performance of personal computers has increased to unprecedented heights. Highly integrated motherboards, high-performance CPUs, and incredible graphics cards make up the best equipment in the hands of gamers. These thousands of dollars of personal computers can play a variety of 3A games, and they can also meet the needs of various designs and work. But the excellent performance brings enormous heat. Ensuring that the motherboard will not overheat has become a topic that people need to solve urgently.

The radiator in the past was an air duct composed of several chassis fans. Use the airflow generated by the fan to suck in cold air and expel hot air. However, traditional air-cooled heat dissipation methods can no longer meet the heat dissipation needs of modern high-performance PCs.

Today we will introduce to you how the water cold plate works. Why can it take away heat? How does it cool down? We believe that you will have a thorough understanding after reading this article.

The working principle of the water cold plate is not complicated. The designer uses a liquid with a larger heat capacity to absorb more heat and then uses a pump to transport the liquid to a thermal cooling plate with a larger heat dissipation area. The cooled liquid will flow back to the heat-generating part, absorb heat and take away the heat. It is the heat dissipation principle of a cold water plate.

Since the specific heat capacity of liquid is much larger than that of air, the heat dissipation efficiency of the cold water plate is much higher than that of the air cooling system. The gap between them has reached 20 times or more. Almost all high-power electrical appliances and mechanical equipment require liquid cooling systems for heat dissipation. Nowadays, the efficiency of electrical equipment on radiators is getting higher and higher. This situation has promoted the rapid development of the radiator industry. Different equipment needs to use different radiators. Most of the radiators are designed by engineers based on actual conditions. Although different radiators have slightly different designs, their heat dissipation principles are the same.

The 21st century can be a stage in which the development of human science and technology has exploded. All kinds of cross-age technologies and discoveries emerge endlessly. The earliest fixed telephone appeared in the 1860s. Still, it was not until the 1970s, a hundred years later, that the earliest portable telephones gradually appeared, and this kind of telephones gradually became popular in the 1990s 20 years later. In the blink of an eye, the timeline has come to 2021, just 20 years into the 21st century. Human technology has gradually eliminated multiple signal transmission methods. Mobile phones in the early 20th century have become antiques today. 5G technology is becoming popular in more and more countries, people's lives are gradually being accelerated by 5G, and we are increasingly inseparable from 5G networks. Imagine that Wall Street loses the Internet for one day. The consequences will be irreversible.

Everyone knows the law of conservation of mass when something is doing work. It inevitably emits heat so that engineers will equip them with the corresponding thermal cooling plate—especially products of the electronic component type. Due to complex circuits and various electronic components on the PCB circuit board, an electrical appliance emits a lot of heat when it is working. The 5G signal base station, as one of the most integrated devices today, emits more heat and electromagnetic fields than any base station in the past. And due to the improvement of technology, the 5G signal base station has dramatically reduced the volume while improving the performance. It means that its cooling plates for electronics should also be synchronized to improve heat dissipation efficiency and reduce volume. Thanks to the emergence of new materials such as polymers, engineers have been greatly helped. Although materials such as silica gel have a good heat dissipation effect, 5G base stations are built on open high places such as rooftops. It means that harsh natural conditions such as wind, sun, lightning, and rain also accompany it. Silica gel cannot be guaranteed to be effective for a long time under this condition. Therefore, engineers choose the formula of silica gel + copper cold plate to dissipate heat from 5G base stations. Copper material has good stability and can still play a role in electromagnetic and high-temperature environments. The copper plate also has a certain degree of corrosion resistance to rain erosion.

Water cold plate has relatively high requirements for welding technology. Nowadays, manufacturers generally use two welding methods, friction stir welding or vacuum brazing. This article will discuss topics related to water cold plate welding.

The welding conditions of a water cold plate are mainly related to its material. Different types of metals are suitable for different welding methods. The more common ones on the market are copper cold plate and aluminum cold plate. If there is no influence of metal characteristics, it is determined according to the structure. Friction stir welding is selected for the flat plate structure with a small quantity and large processing surface, and the friction stir welding speed is fast, and the cost is low. If it is a facade structure or a large-volume product, vacuum brazing is more advantageous. The water cooling plate must select the most optimized process plan according to different precision requirements and workpiece structure characteristics.

The normal operation of the water-cooled equipment affects the normal operation of the machine. In order to make the machine run more stably and increase its service life, the maintenance and maintenance of the aluminum cold plate of the water-cooled equipment has become a must.

A technician from the cold plate manufacturer told the editor that during normal operation of the liquid cold plate chiller, it is inevitable that dirt or other impurities will affect the cooling effect. Therefore, in order to prolong the service life of the water-cooled plate chiller and achieve the best cooling effect, regular maintenance and maintenance work should be done to ensure the operating quality of the chiller and improve production efficiency. So what should be the correct approach?

(1) Regularly check whether the voltage and current of the water cold plate chiller are stable, and whether the compressor's operating sound is normal. If it is a semi-hermetic compressor, check the oil quantity regularly. Normally, it should be more than 2/3 of the window. When the water-cooled plate chiller works normally, the voltage is 380V and the current is within the range of 11A-15A. It is normal. The normal use of electricity is the most basic guarantee.

(2) Regularly check whether the cold plate chiller refrigerant leaks: it can be judged by referring to the parameters displayed on the high and low pressure meter on the front panel of the host. According to the temperature (winter, summer) temperature changes, the pressure display of the chiller is also different. When the chiller is working normally, the high pressure display is usually 11-17kg, and the low pressure display 3.5kg-5kg is normal. If abnormal conditions occur, you need to Further determine the cause.

(3) Check whether the cooling water system of the water-cooled plate chiller is normal, whether the cooling tower fan and sprinkler shaft are running well, and whether the water supply of the built-in water tank of the water-cooled plate chiller is normal. The water-cooled plate chiller should be replaced with new water once every three months. If it cannot be replaced, please add a descaling agent to ensure the smoothness of the water-cooled plate.

(4) All industrial chillers should be cleaned when they are used for six months. After that, they must be cleaned once a year. The main cleaning parts include: cooling water towers, radiator pipes and condensers to ensure better cooling effect. Cleaning at the same time It is also the point in time to check for abnormalities.

(5) When the water-cooled plate chiller is not used for a long time, the circuit switches such as the water pump, compressor and the main power supply of the cooling water tower should be turned off in time, and the start operation should be performed when it is needed again. The water-cooled plate chiller needs to be connected with a cooling water tower and a circulating water pump to achieve the cooling effect. In order to ensure the quality of the circulating water, you can consider installing a Y-type filter at the water source and adding algicide and descaling agent to the cooling water tower to avoid impurities Into the pipeline or cause algaeification of water and affect the operation of the unit.

(6) The water-cooled plate chiller uses the designated refrigerant. If you want to replace it, you need to find the original factory to know the model of the refrigerant, and then purchase and replace it. If the fault occurs, please check the system according to the fault indicator. If the fault cannot be eliminated, do not disassemble the machine without authorization, especially in unprofessional situations. At this time, contact the original after-sales service of the water-cooled plate and request technical support.

Good use habits and maintenance methods can better ensure the operation of the machine, and at the same time greatly increase the service life of the machine, which brings great hidden benefits.

LGA4189 heat sink made by Winshare thermalloy is usually used for server heat dissipation. The server heat sink produced by

our company has good heat dissipation performance and high efficiency of heat pipe. It adopts soldering process and precision

stamping process, which can meet the requirements of heat dissipation.

P/N LGA4189-M71

Material: Aluminum 1100 fins and copper 3 heat pipes

Process: Soldering

Size: 113mm*78mm*25.3mm

Power: 200W

Fin thickness 0.3, and fin distance 1.5mm

Many people think that heat sink and water cooling plate are the same things. They are just a part of the heat exchange system. This article will introduce you to the concept of radiator and water-cooling plate in detail.

The radiator, also known as the heat exchanger, is used to exchange heat through liquid circulation. That is the meaning of a heat exchanger, such as the finned radiator in a car.　If a device directly contacts an electronic component to dissipate heat, it is generally called a cooler. For example, it is called　CPU cooler, PC cooler. At the same time, some people call the heat sink, heatsink, also called a radiator. Strictly speaking, the heat sink does not have a fan, they are just a hardware product, and the heat sink achieves the purpose of heat dissipation by combining with other parts.

A cold plate is also called a water cooling plate or liquid cooling plate. It is an element that exchanges heat through liquid cooling. Its working principle is to form a flow channel in the metal sheet. The electronic components are installed on the board's surface, and the contact surface is coated with a heat-conducting medium material. Coolant enters from the inlet of the cold plate and flows out from the outlet. Take away the heat emitted by the component.

The water cooling plate is also called a cooling water radiator and liquid cooling radiator. The common one is an aluminum cooling plate, mainly used for heat dissipation of high-power electrical appliances, such as servers, frequency converters, inverters, APF, SVG, IGBT, etc. If the water-cooling plate is attached to the heating element, it will dissipate the heat, and then the heat will be dissipated through the cold plate cooling system. The liquid inside the water cooling plate is dedicated.

The water-cooling plate is only a part of the entire heat dissipation system, and it is the cold plate cooling system that reduces the heat. You need to combine multiple components such as radiator + water cooling plate + water pump + pipeline to make the water cooling plate work. The primary function of the water-cooling plate is only to take the heat away from the heating object. But according to the law of conservation of mass, the heat taken away will not disappear. So we need a whole set of cold plate cooling systems for heat loss. However, the water cooling plate is also an essential part because the heat conduction efficiency directly affects the heat dissipation of the cold plate cooling system. How to quickly take away the heat? We need to evaluate the heat dissipation conditions and machines used to design the cold plate cooling system with the highest heat dissipation efficiency. Among the many liquid cooling heatsinks, the copper cooling plate has the best heat conduction effect. Because of the excellent metal properties of copper, it can still maintain average working performance in harsh environments. So we recommend using a copper cooling plate.

The liquid cooling plate is mainly divided into two categories. One is a plate cooler, mainly assembled by an aluminum cooling plateor cold copper plate. The tubular cooler is mainly composed of aluminum heat conduction pipes or copper heat conduction pipes.

The working principles of the two coolers are roughly the same, but the working methods are slightly different. Tubular coolers have two data. The liquid flow in the tube is called the flow path in the tube, and the liquid flow outside the tube is called the shell flow path. When the temperature of the tube bundle and the shell exceeds 50 degrees Celsius, we should take temperature compensation measures to reduce thermal stress.

Plate coolers are more common, and temperature conversion devices such as air conditioners and refrigerators in our lives are composed of them. It is a heat exchanger formed by stacking a series of corrugated plates. It has many advantages such as high heat transfer coefficient, small footprint, lightweight, low price, convenient manufacturing, easy cleaning, convenient manufacturing, and not easy to scale. Applications are also extensive: central heating, metallurgy, chemistry, electricity, machinery, papermaking, textiles, food, HVAC, etc.

Whether a tube cooler or a plate cooler, the copper heat conduction device has better effect and better quality. But copper coolers are also more expensive.

Water cold plate has relatively high requirements for welding technology. Nowadays, manufacturers generally use two welding methods, friction stir welding or vacuum brazing. This article will discuss topics related to water cold plate welding.

The welding conditions of a water cold plate are mainly related to its material. Different types of metals are suitable for different welding methods. The more common ones on the market are copper cold plate and aluminum cold plate. If there is no influence of metal characteristics, it is determined according to the structure. Friction stir welding is selected for the flat plate structure with a small quantity and large processing surface, and the friction stir welding speed is fast, and the cost is low. If it is a facade structure or a large-volume product, vacuum brazing is more advantageous. The water cooling plate must select the most optimized process plan according to different precision requirements and workpiece structure characteristics.

IGBT power semiconductor modules are the core components of current power electronic devices, and the accumulation of heat will seriously affect the safety, reliability and performance of the devices. The heat dissipation problem is becoming more and more prominent, and the requirements for module cooling are also increasing.

Under normal circumstances, the current flowing through the IGBT module is relatively large and the switching frequency is relatively high, which causes the loss of the IGBT module device to be relatively large, making the temperature of the device too high, and the poor heat dissipation of the IGBT module will cause damage and affect the operation of the whole machine. The cause of IGBT overheating may be poor driving waveform or excessive current or high switching frequency, or poor heat dissipation.

Pin fin heat sink is an efficient radiator. I can help with your machine. Pin fin heat sink is a gas and liquid heat exchange equipment. By adding fins to the standard base tube, this structure can enhance the heat transfer effect. The base pipe generally adopts stainless steel pipe; Copper pipe, etc. The fins are made of stainless steel strip, copper strip, and aluminum strip.Nowadays, many industries need to use pin fin heat sinks for heat conduction. But its structure and working principle are little known. This article will answer for you.

Three rows of parallel spiral fin tube bundles between airflow directions are the core of the pin fin heat sink. The finned heat exchanger adopts mechanical winding. The contact surface between the radiating fin and the radiating tube is large and has good adhesion. Therefore, its heat transfer performance is excellent and stable, and the air is famous. Steam or hot water flows through the steel pipe, and the heat is transmitted to the air between the fins through the fins on the steel pipe so as to heat and cool the air

The above is pin fin heat sink. We are a custom heatsink manufacturer. Support the production and ordering of various custom heat sinks. If you need a radiator, please get in touch with us. We are always at your service.

Pin fin heat sink has many styles and types. If you are a customer who doesn't know pin fin heat sink, you may have trouble selecting products. We are a professional custom heatsink manufacturer, and we will provide you with some helpful suggestions.

The spacing and height of the pin fin heat sink affect the winging ratio. The fin ratio is closely related to the thermal conductivity of internal and external media. If the difference in thermal conductivity is too significant, a finned tube with large fins should be equipped. When the medium has a phase transition, the difference in thermal conductivity will be too significant. If it is heat exchange without phase transition, it belongs to a low heat transfer coefficient. We can select finned tubes and bare tubes with a low winging ratio. The larger the winging ratio is, the better. We should optimize the contact area on the internal contact surface. For example, threaded and grooved pipes are used. The fin pitch shall consider the factors such as ash deposition, dust deposition, and easy cleaning and strictly meet the equipment's requirements for pressure drop. When arranging, you cannot arrange according to one standard. The most suitable spacing and density shall be calculated according to the actual situation.

The above is the difference between pin fin heat sinks of different specifications. We believe that you have learned something about pin fin heat sink after reading this article. Suppose you want more about pin fin heat sink and other custom heat pipes. You can contact us, and we will give you a reply in time.

Many customers who use Winshare Thermal's liquid cooled cold plates use IGBT modules. IGBT is the core device for energy conversion and transmission, commonly known as the "CPU" of power electronic devices. As a national strategic emerging industry, it is widely used in rail transit, smart grid, aerospace, electric vehicles and new energy equipment.

In most cases, the current flowing through the IGBT module is relatively large and the switching frequency is relatively high, which causes the loss of the IGBT module device to be relatively large, making the temperature of the device too high, and the poor heat dissipation of the IGBT module will cause damage and affect the operation of the whole machine. The cause of IGBT overheating may be poor driving waveform or excessive current or high switching frequency, or poor heat dissipation.

If the temperature is too high, the work efficiency of the module will decrease, which will affect the overall work progress. Especially those devices that need to work continuously have greater reliance on IGBT modules and need a good heat dissipation system for protection. Speaking of heat dissipation methods, the most commonly used are passive fin heat dissipation and air-cooled heat dissipation. These heat dissipation methods have low cost and are easy to use and are widely used. However, there are also many restrictive factors. The accumulation of heat cannot be dissipated in time, and the heat dissipation effect will quickly reach the bottleneck. In this case, the IGBT module is facing a big dilemma.

Under this circumstance, the new heat dissipation method must replace the traditional heat dissipation mode. The water cooled cold plate heat dissipation as a fast-developing method has been outstanding in the field of heat dissipation in recent years. As the leading liquid cold plate manufacturer in China, Winshare Thermal has been providing efficient and stable water cooling plates for cooperative users in the IGBT field in recent years to solve the heat dissipation problem of their IGBT modules.

By 2025, the communications industry will consume 20% of the world's electricity, and in mobile communication networks, base stations are large consumers of electricity, and about 80% of energy consumption comes from widely distributed base stations. More encrypted base stations mean higher energy consumption, which is a major cost challenge facing 5G networks.

From the energy structure, power consumption means higher costs and greater indirect pressure on environmental pollution. From the perspective of thermal design, the base station generates more heat, and the difficulty of temperature control rises sharply. From the measured data in the above figure, the power consumption of 5G base stations has reached 2.5 to 4 times that of 4G base stations.

Engineers who have worked in the communication industry know that communication base stations are usually installed on the iron frame on the roof of the building and high in the field. The size and weight are very important to the installation convenience of the equipment. "Coincidentally" is that power consumption, volume, and weight are the core design boundary conditions in thermal design.

As the leading cold plate heat sink supplier in China, Winshare Thermal provides liquid cooled cold plates to the communications industry. if you need it, please contact us now!